This is going to be quick and simple...
I know most believe that each eye sharigan has their own set of ability right? And this has let that some believe that Obito sharigan can use the ability to phase in and out as well as intangible. While Kakashi can only kamui things.
Well if you read here :
You noticed Kakashi activated Kamui after being absorbed by Obito and next few pages he pops back into normal world.
Here are my theory:
It's either Kakashi being a copy ninja managed to copy Obito eye ability and started using the phasing ability himself or Kakashi knows how to phase in and out but doesn't use it for some unknown reason (my bet the phasing ability uses tremendous amount of chakra)
I know most believe that each eye sharigan has their own set of ability right? And this has let that some believe that Obito sharigan can use the ability to phase in and out as well as intangible. While Kakashi can only kamui things.
Well if you read here :
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You noticed Kakashi activated Kamui after being absorbed by Obito and next few pages he pops back into normal world.
Here are my theory:
It's either Kakashi being a copy ninja managed to copy Obito eye ability and started using the phasing ability himself or Kakashi knows how to phase in and out but doesn't use it for some unknown reason (my bet the phasing ability uses tremendous amount of chakra)